期刊论文

中文

中国农业科学

0578-1752

2004

37

11

1611-1615

10.3321/j.issn:0578-1752.2004.11.005

国家“十五”科技攻关重大专项资助项目（2001BA507A-01）； 国家农业科技成果转化基金资助项目（02EPN214300453）； 湖南省教育厅优秀青年基金资助项目（02B008）；

本校为第一机构

通过湿润育秧试验,研究了浸种型水稻种衣剂对秧苗生长、苗体酶活性及内源激素的影响.结果表明,浸种型水稻种衣剂具有促进种子萌发与秧苗生长、增强秧苗抗逆性、提高秧苗综合素质与成秧率等作用,但作用程度在杂交品种和常规品种间存在一定差异.与对照相比,包衣处理苗体过氧化物酶(POX)、过氧化氢酶(CAT)和超氧化物歧化酶(SOD)活性分别提高17.0%～26.3%、7.0%～10.1%和1.1%～1.7%;内源激素吲哚乙酸(IAA)、赤霉素(GA3)含量分别提高19.2%～25.9%和32.2%～50.0%;而脱落酸(ABA)含量降低5.6%～15.0%;叶绿素含量和成秧率分别提高18.7%～38.5%和8.5%～10.3%.

Effects of soaking-suitable rice seed-coating agent on seedling growth, some enzyme activities and internal hormones were studied by means of experiment of water-raised seedling with coated seeds of hybrid and conventional rices. Results showed that this seed-coating agent not only could promote seed germination and seedling growth, increase seedling resistance to adverse environments, but also could enhance seedling qualities and adult seedling rate. These effects, hower, are different on hybrid and conventional varieties. The activities of pexoxidase (POX), catalase(CAT) and superaxide dismu...